The men's Karhu Synchron 2.0 is a premium cushion daily trainer for neutral or mid to late-stage overpronators runners.

The spring 2023 Synchron 2.0 received a complete update; a softer AeroFoam Nova midsole for the most comfortable run and redesigned upper, resulting in a premium supportive fit. Repositioning the stingray Fulcrum combined with a full contact durable outsole and a lighter midsole produces a soft, flexible, and stable ride with a smooth, supportive transition through the gait cycle. The Synchron 2.0 is ideal for longer runs and long days on foot.

New this season, the Synchron 2.0 is also available in a wide fit, KARHU calls this High Volume (HiVo).

Technologies Karhu Synchron 2.0:
-Anatomical lacing system
-Full-length Fulcrum
-IdealKnit
-Ortix Fit
-AeroFoam Nova midsole
-M-Lock
-Open-cell foam insole

Weight US10: 352g / 12.4 oz
Heel-to-toe drop: 8mm

Delivery

We ship orders with in the USA, Mexico, Canada, Australia and New Zealand only. All web orders are shipped from Fife, WA. If you would like to obtain a proof of delivery email us separately, any lost packages or items must be claimed through/with the carrier selected for the shipment.

Please note that during national holidays in the USA we aren't shipping.

Please note that Karhu can't deliver to PO Boxes.

We allow 48 hours for order processing after order placement. This is rare but can occur during peak shipping seasons. All tracking information is emailed 24 hours after the order is shipped.

* For shipping to Alaska, Puerto Rico, Hawaii, AFA, AFE and AFP there is a different shipping of $14.95. 

** Orders valued more the $100.- will ship Economy Free of charge. Otherwise there will be a shipping fee of $7.95.

*** Orders shipped outside of the United States are charged a shipping fee of $29.95.

 Returns

If you choose to return your product from within the USA for a refund, we will provide a prepaid return-shipping label and a refund for the amount you paid for your purchase, minus a $5.00 restocking fee per item returned. 

If you choose to return your product from outside of the USA for a refund, you will have to return the product at your own expense. We will issue a refund for your purchase, minus a $5.00 restocking fee per item returned.

Only product purchased directly www.karhu.com can be returned to our return processing center. Any unauthorized return of Karhu product will not be accepted or processed at our processing center. The sender of unauthorized returns will be responsible for all return shipment costs.

Return shipment may be sent to:

Regal Logistics
6500-26th Street East
Fife, WA 98424 United States of America

Accompanied by this return form: download here

Important: Product must be clean and the box in proper condition to be accepted.

Under garments such as briefs, boxers, undershorts, underpants may not be returned for size exchange or refunds due to hygienic reasons we can not restock these items.

All sneakers must be in the condition you received them and in the original box.
Warranty related product returns must be shipped to the same address as listed above. All products returned for warranty related reasons will be inspected upon the return of the product.

Please allow 2-3 weeks for processing.

For shipments outside the US or special regions Karhu won't provide a return label. We do except your return taking into account the conditions mentioned above. Please note that you ship your return Duties and Taxes paid. 

Size guide